		ORG 0000H
		AJMP MAIN
		ORG 0100H
MAIN: 	
		MOV A,50H
		MOV DPTR,#9000H
		MOVX @DPTR,A 

		MOV DPTR,#8000H
		MOVX @DPTR,A
		MOV R7,#64
		DJNZ R7,$

		MOVX A,@DPTR
		MOV P1,A
		LJMP MAIN

		END